To evaluate the adaptability and performance of new and promising apple rootstocks in the dwarfing size-control category, a NC-140 regional rootstock trial was established in 2010 at 12 sites in the United States (CO, IA, IL, IN, MA, MI, MN, NJ, NY, OH, UT, WI), two sites in Canada (BC, NS), and one site in Mexico (CHIH) with Honeycrisp serving as the test cultivar. A similar trial was established at seven sites (ID, KY, NC, NY, PA, UT, CHIH) with Aztec Fuji serving as the test cultivar.
Iowa State University
Domoto, Paul A. and Schroeder, Lynn R., "Performance of a New Dwarf Apple Rootstock Trial (2010 NC-140)" (2011). Iowa State Research Farm Progress Reports. 203.